Tile polygons disappear in TileSet's Select mode

### Tested versions

4.3 rc1 and likely earlier

### System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 31.0.15.4633) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

### Issue description

https://github.com/user-attachments/assets/44ef5a44-010e-42b2-8161-92f2aea869f4

Notice how the polygon displays on the right side view when I edit the polygon, but it disappears after I select another tile 2 times (sometimes once).

### Steps to reproduce

1. Create TileSet with atlas source
2. Add physics layer
3. Select a tile in Select mode in TileSet editor
4. Draw a polygon in Physics Layer
5. Select another tile
6. Select another tile again

### Minimal reproduction project (MRP)

N/A

Start by reproducing the issue in the TileSet editor using the listed steps: create an atlas source, add a physics layer, draw a polygon in Select mode, and switch between tiles. Trace the TileSet editor behavior around those tile selections; done means the polygon remains visible after selecting another tile once or twice.

Written by the indexing model from the issue text.